Finding the Fourth Proportional to 485,611,201.80, 728,416,802.70 and 434,592,865.80
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Solution
The fourth proportional to 485,611,201.80, 728,416,802.70 and 434,592,865.80 is: 651,889,298.70
Step by Step Solution
- Step 1: Write the proportion equation
485,611,201.80 : 728,416,802.70 = 434,592,865.80 : x - Step 2: Convert to fraction form
485,611,201.80/728,416,802.70 = 434,592,865.80/x - Step 3: Cross multiply
485,611,201.80x = 728,416,802.70 × 434,592,865.80 - Step 4: Simplify right side
485,611,201.80x = 316,564,745,782,266,176 - Step 5: Solve for x
x = 316,564,745,782,266,176/485,611,201.80 - Step 6: Final answer
x = 651,889,298.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.